{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["material", "engineering feature", "manufacturing process", "machanical property", "machine or equipment", "process characterization"], "input": "Obtained joint was a combination of welding and mechanical lock among constituents ."}
{"material": [], "engineering feature": [], "manufacturing process": ["welding"], "machanical property": [], "machine or equipment": [], "process characterization": []}